[asterisk-users] IAX2 trunking scalability

[Jean-Michel Hiver]

Le Sun, 26 Aug 2007 20:20:01 +0400, Andrew Joakimsen <joakimsen at gmail.com>  
a écrit:

> On 8/25/07, Jean-Michel Hiver <jhiver at ykoz.net> wrote:
>
>> I'm already receiving the calls as g.729, so there is little gain
>> (slightly less bandwith usage, slighly worse sound) in doing g.729 ->
>> g.723 transcoding - while doing IAX2 trunking vs NOT doing it seems to
>> half the bandwith requirement.
>
>
> Main point was CPU usage. Even if you "receive" the calls as G729 then
> you need to transcode to Alaw and transcode all the alaw from the E1
> to G729.
>
> Unless somehow you have an E1 using G729!

I do. I use a variety of audiocodes, patton, and quescom SIP gateways. All  
support g.729.

Cheers,
Jean-Michel.

-- 
Jean-Michel Hiver - YKOZ
+262 (0)692 828 070